Nuts and bolts
Airman 1st Class Bradley Giroux hammers out a faulty nut on an F-16 Fighting Falcon's Davis Elliptical fastener Dec. 22 at Balad Air Base, Iraq. The fastener is a self-locking, self-sustaining device that holds multiple bolts in place. Airman Giroux, a 332nd Expeditionary Maintenance Squadron sheet metal technician, is deployed from Spangdahlem Air Base, Germany. (U.S. Air Force photo/Staff Sgt. Joshua Garcia)